Denver to Seattle

DENSEA

Fly from Denver to Seattle starting at USD 37 with Frontier Airlines.Best fare available on Aug 10, 2026.Limited seats. Better plans. Book before it's gone.

Denver to Seattle cheapest flights this week

19 Jul
Alaska Airlines
06:02DEN
09:05SEA
DirectUSD 85VIEW DEAL
19 Jul
Frontier Airlines
07:13DEN
10:17SEA
DirectUSD 153VIEW DEAL
20 Jul
Frontier Airlines
09:13DEN
12:20SEA
DirectUSD 153VIEW DEAL
24 Jul
Frontier Airlines
16:25DEN
11:39SEA
1 StopUSD 147VIEW DEAL
2 Aug
Frontier Airlines
07:13DEN
10:17SEA
DirectUSD 73VIEW DEAL
10 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectUSD 37VIEW DEAL
14 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectUSD 109VIEW DEAL
15 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectUSD 60VIEW DEAL
16 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectUSD 46VIEW DEAL
17 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectUSD 47VIEW DEAL

Denver to Seattle monthly flight fare trend

Jul
from USD 85
Aug
from USD 37
Sep
from USD 89
Oct
No flights
Nov
from USD 143
Dec
from USD 171

Airport Details

Origin

Denver

Denver International Airport (DEN)

Denver, DEN
Zone

Denver

Elev

5431 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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